Joy-Con Drift Detection
Detect analog stick drift on Nintendo Switch Joy-Cons. Averaged resting drift measurement per Joy-Con with pass or replace verdict.
Put both Joy-Cons on a flat surface, hands off. The tester averages resting drift over the last 120 samples.
What the Joy-Con Drift Detection does
Joy-Con stick drift is one of the most reported controller faults ever. This tester samples the resting stick position over 120 frames and averages the deviation from center, giving a clear pass, minor, or replace verdict per Joy-Con.
How to run the test
- Connect both Joy-Cons to your PC over Bluetooth or use a Joy-Con to USB adapter.
- Place them flat on a table with no thumbs on the sticks.
- Wait a few seconds for the sample window to fill.
- Read the verdict: healthy under 0.05, minor drift 0.05 to 0.15, replace above 0.15.
Why Joy-Con drift is so common
The Joy-Con stick module is smaller than a full-size controller stick and uses the same style of carbon potentiometer that wears out. Because the Joy-Con is so small and users grip it tightly, dust and skin oils get into the stick base faster than they do on larger controllers. Nintendo has acknowledged the problem publicly and offers free repairs in many regions, so try that route first before spending money.
How this tester measures drift
The stick reports its X and Y position 60 times per second. When your thumb is off the stick, a healthy sensor reports something very close to 0.00, 0.00. This tester averages 120 consecutive samples (two seconds worth) to reject noise, then compares the average to a threshold. Averaging matters because a single sample can twitch. If the two-second average is above 0.05, the sensor is genuinely off center.
How to submit for a free Nintendo repair
Visit the Nintendo support site for your region and start a repair ticket for Joy-Con drift. In the United States, Europe, and Japan, Nintendo has confirmed they will repair the drift at no charge even if the Joy-Con is out of warranty. Ship both Joy-Cons together if both drift. Turnaround is typically 1 to 3 weeks.
DIY replacement with hall-effect modules
If you are out of warranty or Nintendo will not repair, hall-effect replacement modules are widely available for 8 to 15 USD per pair. Replacing them requires opening the Joy-Con shell (a Y00 tri-wing screwdriver), disconnecting a ribbon cable, unscrewing the stick module, and soldering the replacement. It takes about 30 minutes per Joy-Con on the first attempt. After the swap, re-run this test and you should see values under 0.02.
Related tests to run after a repair
After a stick replacement, run our Stick Drift Test for a coordinate view, then the Circularity Test to confirm the new stick reaches full deflection in all directions. If either test fails on a brand new module, the module was defective and needs to be swapped again.
Common problems and quick fixes
Common questions
Can this fix the drift?+
Both Joy-Cons at once?+
Does drift come back after repair?+
Set both Joy-Cons flat, hands off, wait two seconds, and read your verdict. Free Nintendo repair may be one form away.
Every diagnostic here runs locally in your browser. Nothing is uploaded.
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Pair this test with any of the below for a full controller health check.
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